I have always felt that it's great having options. And this a cool looking option to me.

Another one that I have been using for years and years is as simple as a white berol colored pencil. I find that they are great as I can control how bright/new or faded/old the markings are. All it really requires is constant sharpening to maintain a good point when I get to the fineer areas of any markings I am doing. And the best part is that there is a 100% guarantee of no decal film showing up when I get to the weathering portion of the paint job.